public void AddTwoIntegers()
{
AddExpression expr = new AddExpression(new ConstantExpression(1), new ConstantExpression(2));
Assert.AreEqual(3, expr.Evaluate(null));
Assert.IsFalse(expr.HasVariable());
}
public void AddVariableAndInteger()
{
Context context = new Context();
context.SetValue("One", 1);
AddExpression expr = new AddExpression(new VariableExpression(new Variable("One")), new ConstantExpression(2));
Assert.AreEqual(3, expr.Evaluate(context));
Assert.IsTrue(expr.HasVariable());
}
public void AddIntegerAndVariable()
{
Context context = new Context();
context.SetValue("Two", 2);
AddExpression expr = new AddExpression(new ConstantExpression(1), new VariableExpression(new Variable("Two")));
Assert.AreEqual(3, expr.Evaluate(context));
Assert.IsTrue(expr.HasVariable());
}
public void AddTwoDoubles()
{
AddExpression expr = new AddExpression(new ConstantExpression(2.5), new ConstantExpression(3.7));
Assert.AreEqual(2.5 + 3.7, expr.Evaluate(null));
}
public void AddIntegerToDouble()
{
AddExpression expr = new AddExpression(new ConstantExpression(1), new ConstantExpression(2.5));
Assert.AreEqual(1 + 2.5, expr.Evaluate(null));
}
public void AddDoubleToInteger()
{
AddExpression expr = new AddExpression(new ConstantExpression(2.5), new ConstantExpression(1));
Assert.AreEqual(2.5 + 1, expr.Evaluate(null));
}
